WIP descriptor changes

cpp/arcticdb/CMakeLists.txt

@@ -219,7 +219,6 @@ set(arcticdb_srcs
         entity/type_conversion.hpp
         entity/types.hpp
         entity/type_utils.hpp
-        entity/types_proto.hpp
         entity/types-inl.hpp
         entity/variant_key.hpp
         entity/versioned_item.hpp
@@ -310,7 +309,7 @@ set(arcticdb_srcs
         stream/index.hpp
         stream/merge.hpp
         stream/merge.hpp
-        stream/merge.hpp util/ref_counted_map.hpp
+        stream/merge.hpp
         stream/protobuf_mappings.hpp
         stream/row_builder.hpp
         stream/schema.hpp
@@ -353,8 +352,6 @@ set(arcticdb_srcs
         util/preconditions.hpp
         util/preprocess.hpp
         util/ranges_from_future.hpp
-        util/ref_counted_map.hpp
-        util/ref_counted_map.hpp
         util/regex_filter.hpp
         util/simple_string_hash.hpp
         util/slab_allocator.hpp
@@ -390,9 +387,7 @@ set(arcticdb_srcs
         codec/codec.cpp
         codec/encode_v1.cpp
         codec/encode_v2.cpp
-        codec/encoding_sizes.cpp
         codec/segment.cpp
-        codec/variant_encoded_field_collection.cpp
         column_store/chunked_buffer.cpp
         column_store/column.cpp
         column_store/column_data.cpp
@@ -408,7 +403,6 @@ set(arcticdb_srcs
         entity/performance_tracing.cpp
         entity/types.cpp
         entity/type_utils.cpp
-        entity/types_proto.cpp
         log/log.cpp
         pipeline/column_mapping.cpp
         pipeline/column_stats.cpp
@@ -487,7 +481,12 @@ set(arcticdb_srcs
         version/symbol_list.cpp
         version/version_map_batch_methods.cpp
         storage/s3/ec2_utils.cpp
-)
+        codec/segment_header.hpp
+        codec/protobuf_mappings.hpp
+        codec/encoded_field.cpp
+        memory_layout.hpp
+        codec/protobuf_mappings.cpp
+        entity/protobuf_mappings.cpp entity/types_proto.hpp entity/types_proto.cpp stream/protobuf_mappings.cpp codec/segment_header.cpp codec/segment_identifier.hpp)
 
 if(${ARCTICDB_INCLUDE_ROCKSDB})
     list (APPEND arcticdb_srcs
@@ -831,7 +830,7 @@ if(${TEST})
             version/test/test_sorting_info_state_machine.cpp
             version/test/version_map_model.hpp
             storage/test/common.hpp
-    )
+            codec/test/test_encode_field_collection.cpp codec/test/test_segment_header.cpp codec/test/test_encoded_field.cpp)
 
     set(EXECUTABLE_PERMS OWNER_WRITE OWNER_READ OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE) # 755
 

cpp/arcticdb/async/task_scheduler.hpp

@@ -152,7 +152,7 @@ class TaskScheduler {
 
      explicit TaskScheduler(const std::optional<size_t>& cpu_thread_count = std::nullopt, const std::optional<size_t>& io_thread_count = std::nullopt) :
         cpu_thread_count_(cpu_thread_count ? *cpu_thread_count : ConfigsMap::instance()->get_int("VersionStore.NumCPUThreads", get_default_num_cpus())),
-        io_thread_count_(io_thread_count ? *io_thread_count : ConfigsMap::instance()->get_int("VersionStore.NumIOThreads", std::min(100, (int) (cpu_thread_count_ * 1.5)))),
+        io_thread_count_(io_thread_count ? *io_thread_count : ConfigsMap::instance()->get_int("VersionStore.NumIOThreads", (int) (cpu_thread_count_ * 1.5))),
         cpu_exec_(cpu_thread_count_, std::make_shared<InstrumentedNamedFactory>("CPUPool")) ,
         io_exec_(io_thread_count_,  std::make_shared<InstrumentedNamedFactory>("IOPool")){
         util::check(cpu_thread_count_ > 0 && io_thread_count_ > 0, "Zero IO or CPU threads: {} {}", io_thread_count_, cpu_thread_count_);

cpp/arcticdb/async/tasks.cpp

@@ -27,10 +27,10 @@ namespace arcticdb::async {
                     }
                 }
 
-                return index_descriptor(StreamDescriptor::id_from_proto(desc.proto()), idx, fields);
+                return index_descriptor_from_range(desc.id(), idx, fields);
             }
             else {
-                return index_descriptor(StreamDescriptor::id_from_proto(desc.proto()), idx, desc.fields());
+                return index_descriptor_from_range(desc.id(), idx, desc.fields());
             }
         });
     }
@@ -42,7 +42,7 @@ namespace arcticdb::async {
                        seg.total_segment_size(),
                        key);
         auto &hdr = seg.header();
-        auto desc = StreamDescriptor(std::make_shared<StreamDescriptor::Proto>(std::move(*hdr.mutable_stream_descriptor())), seg.fields_ptr());
+        const auto& desc = seg.descriptor();
         auto descriptor = async::get_filtered_descriptor(desc, columns_to_decode_);
         ranges_and_key_.col_range_.second = ranges_and_key_.col_range_.first + (descriptor.field_count() - descriptor.index().field_count());
         ARCTICDB_TRACE(log::codec(), "Creating segment");
@@ -58,7 +58,7 @@ namespace arcticdb::async {
                       variant_key_view(sk.key()));
 
         auto &hdr = seg.header();
-        auto desc = StreamDescriptor(std::make_shared<StreamDescriptor::Proto>(std::move(*hdr.mutable_stream_descriptor())), seg.fields_ptr());
+        const auto& desc = seg.descriptor();
         auto descriptor = async::get_filtered_descriptor(desc, filter_columns_);
         sk.slice_.adjust_columns(descriptor.field_count() - descriptor.index().field_count());
 

cpp/arcticdb/async/tasks.hpp

@@ -207,7 +207,9 @@ struct KeySegmentContinuation {
 };
 
 inline storage::KeySegmentPair read_dispatch(const entity::VariantKey& variant_key, const std::shared_ptr<storage::Library>& lib, const storage::ReadKeyOpts& opts) {
-    return util::variant_match(variant_key, [&lib, &opts](const auto &key) { return lib->read(key, opts); });
+    return util::variant_match(variant_key, [&lib, &opts](const auto &key) {
+        return lib->read(key, opts);
+    });
 }
 
 template <typename Callable>
@@ -365,7 +367,7 @@ struct DecodeSlicesTask : BaseTask {
         ARCTICDB_SAMPLE(DecodeSlicesTask, 0)
         auto sk_pairs = std::move(skp);
         return sk_pairs.transform([that=this] (auto&& ssp){
-            auto seg_slice_pair = std::forward<decltype(ssp)>(ssp);
+            auto seg_slice_pair = std::move(ssp);
             ARCTICDB_DEBUG(log::version(), "Decoding slice {}", seg_slice_pair.second.key());
             return that->decode_into_slice(std::move(seg_slice_pair));
         });
@@ -469,10 +471,7 @@ struct DecodeTimeseriesDescriptorTask : BaseTask {
         util::check(static_cast<bool>(maybe_desc), "Failed to decode timeseries descriptor");
         return std::make_pair(
             std::move(key_seg.variant_key()),
-            TimeseriesDescriptor{
-                std::make_shared<TimeseriesDescriptor::Proto>(std::move(std::get<1>(*maybe_desc))),
-                    std::make_shared<FieldCollection>(std::move(std::get<2>(*maybe_desc)))}
-            );
+            std::move(*maybe_desc));
 
     }
 };

cpp/arcticdb/async/test/test_async.cpp

@@ -43,7 +43,7 @@ TEST(Async, SinkBasic) {
 
     auto seg = ac::SegmentInMemory();
     aa::EncodeAtomTask enc{
-        ac::entity::KeyType::GENERATION, ac::entity::VersionId{6}, ac::entity::NumericId{123}, ac::entity::NumericId{456}, ac::timestamp{457}, {ac::entity::NumericIndex{999}}, std::move(seg), codec_opt, ac::EncodingVersion::V2
+        ac::entity::KeyType::GENERATION, ac::entity::VersionId{6}, ac::NumericId{123}, ac::NumericId{456}, ac::timestamp{457}, {ac::entity::NumericIndex{999}}, std::move(seg), codec_opt, ac::EncodingVersion::V2
     };
 
     auto v = sched.submit_cpu_task(std::move(enc)).via(&aa::io_executor()).thenValue(aa::WriteSegmentTask{lib}).get();
@@ -52,7 +52,7 @@ TEST(Async, SinkBasic) {
     auto default_content_hash = h.digest();
 
     ASSERT_EQ(ac::entity::atom_key_builder().gen_id(6).start_index(456).end_index(457).creation_ts(999)
-        .content_hash(default_content_hash).build(ac::entity::NumericId{123}, ac::entity::KeyType::GENERATION),
+        .content_hash(default_content_hash).build(ac::NumericId{123}, ac::entity::KeyType::GENERATION),
               to_atom(v)
     );
 }

cpp/arcticdb/codec/codec-inl.hpp

@@ -15,8 +15,10 @@
 #include <arcticdb/codec/lz4.hpp>
 #include <arcticdb/codec/encoded_field.hpp>
 #include <arcticdb/codec/magic_words.hpp>
-
 #include <arcticdb/util/bitset.hpp>
+#include <arcticdb/util/buffer.hpp>
+#include <arcticdb/util/sparse_utils.hpp>
+#include <google/protobuf/text_format.h>
 
 #include <type_traits>
 
@@ -32,23 +34,23 @@ void decode_block(const BlockType &block, const std::uint8_t *input, T *output)
         arcticdb::detail::PassthroughDecoder::decode_block<T>(input, size_to_decode, output, decoded_size);
     } else {
         std::uint32_t encoder_version = block.encoder_version();
-        switch (block.codec().codec_case()) {
-            case arcticdb::proto::encoding::VariantCodec::kZstd:
-                arcticdb::detail::ZstdDecoder::decode_block<T>(encoder_version,
-                                                     input,
-                                                     size_to_decode,
-                                                     output,
-                                                     decoded_size);
-                break;
-            case arcticdb::proto::encoding::VariantCodec::kLz4:
-                arcticdb::detail::Lz4Decoder::decode_block<T>(encoder_version,
-                                                    input,
-                                                    size_to_decode,
-                                                    output,
-                                                    decoded_size);
-                break;
-            default:
-                util::raise_error_msg("Unsupported block codec {}", block);
+        switch (block.codec().codec_type()) {
+        case arcticdb::Codec::ZSTD:
+            arcticdb::detail::ZstdDecoder::decode_block<T>(encoder_version,
+                 input,
+                 size_to_decode,
+                 output,
+                 decoded_size);
+            break;
+        case arcticdb::Codec::LZ4:
+            arcticdb::detail::Lz4Decoder::decode_block<T>(encoder_version,
+                input,
+                size_to_decode,
+                output,
+                decoded_size);
+            break;
+        default:
+            util::raise_rte("Unsupported block codec {}", codec_type_to_string(block.codec().codec_type()));
         }
     }
 }
@@ -78,14 +80,15 @@ std::size_t decode_ndarray(
     EncodingVersion encoding_version
 ) {
     ARCTICDB_SUBSAMPLE_AGG(DecodeNdArray)
+
     std::size_t read_bytes = 0;
     td.visit_tag([&](auto type_desc_tag) {
         using TD = std::decay_t<decltype(type_desc_tag)>;
         using T = typename TD::DataTypeTag::raw_type;
 
         const auto data_size = encoding_sizes::data_uncompressed_size(field);
         const bool is_empty_array = (data_size == 0) && type_desc_tag.dimension() > Dimension::Dim0;
-        // Empty array will not contain actual data, however, its sparse map should be loaded
+        // Empty array types will not contain actual data, however, its sparse map should be loaded
         // so that we can distinguish None from []
         if(data_size == 0 && !is_empty_array) {
             util::check(type_desc_tag.data_type() == DataType::EMPTYVAL,
@@ -152,25 +155,25 @@ std::size_t decode_ndarray(
     return read_bytes;
 }
 
-template<class DataSink, typename EncodedFieldType>
+template<class DataSink>
 std::size_t decode_field(
     const TypeDescriptor &td,
-    const EncodedFieldType &field,
+    const EncodedFieldImpl &field,
     const std::uint8_t *input,
     DataSink &data_sink,
     std::optional<util::BitMagic>& bv,
     EncodingVersion encoding_version) {
     size_t magic_size = 0u;
-    if constexpr(std::is_same_v<EncodedFieldType, EncodedField>) {
+    if (encoding_version != EncodingVersion::V1) {
         magic_size += sizeof(ColumnMagic);
         util::check_magic<ColumnMagic>(input);
     }
 
     switch (field.encoding_case()) {
-        case EncodedFieldType::kNdarray:
+        case EncodedFieldType::NDARRAY:
             return decode_ndarray(td, field.ndarray(), input, data_sink, bv, encoding_version) + magic_size;
         default:
-            util::raise_error_msg("Unsupported encoding {}", field);
+            util::raise_rte("Unsupported encoding {}", field);
     }
 }